JPH114936A - Power supply device for game machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a game machine to be activated stably by avoiding the concentrated supply of an alternating current power in a specified stretch of time and also eliminating the voltage variation of a power supply. SOLUTION: A main regulator 1 once rectifies an alternating current power from a commercial power supply with the help of a rectification circuit, then again converts the rectified direct current power to the alternating current power with the help of an inverter circuit, and outputs the alternating current power after regulating its voltage to a predetermined rated voltage. Subregulators 2 are connected to the output side of the main regulator 1 and are installed on game machines or groups of the game machines. The alternating current power to be output from the main regulator 1 is once rectified by the rectification circuit and the rectified direct current power is again converted to the alternating current power through the inverter circuit. At the same time, the alternating current power is output so that the peaks of a voltage waveform and a current waveform of the alternating current power are different at each of the subregulators 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply for a game machine for supplying power to a number of game machines such as a pachinko machine installed in a game arcade.

[0002]

2. Description of the Related Art A game machine such as a pachinko machine generally has an AC
AC power of 24 V is input, AC 24 V is supplied as it is to the lamps, and DC 5 V or DC 12 V is converted and supplied to the internal stabilized power supply for the circuit board.
For this reason, in a pachinko game hall where a number of game machines are installed, a commercial power supply of AC100V is applied to a transformer of AC24V.
And supply the AC24V to the game machine. The game machine uses the built-in stabilized power supply to input AC24V
Is converted to DC5V or DC12V and used as a circuit power supply.

[0003] The rated capacity of a transformer usually used as a power source for such a game machine is generally about 50 A, so that one transformer supplies power to about 10 to 20 game machines. Used by connecting.

[0004]

However, the maximum power consumption of the game machine is about 120 VA, and a maximum of about 5 A flows at 24 V. For this reason, when the maximum current flows simultaneously to ten or more game machines, a current of 50 A or more (rated or more) flows to the power supply line and the transformer, and there is a problem that a voltage drop occurs.

A DC power supply circuit built in a game machine has a rectifier circuit, a smoothing circuit, and the like, similar to ordinary electric equipment, and converts AC into DC to supply DC power to the circuit. However, as shown in FIG. 7, the waveform of the AC voltage input thereto changes from a to b due to full-wave rectification, and further, by the smoothing circuit of the capacitor input type rectifier circuit, as shown in FIG. The voltage waveform is smoothed like the waveform shown in FIG.

However, at this time, when a load current is applied, the waveform of the alternating current input to the power supply circuit becomes a waveform intermittently generated like a current waveform d, although the voltage waveform is a sine wave. And the time during which the current flows is about 1/5 of each cycle.
It has been found that current concentrates at a particular time.

The present invention has been made in view of the above points. By supplying an alternating current having peaks shifted from each other to a large number of game machines, the alternating current is supplied in a concentrated manner at a specific time. An object of the present invention is to provide a power supply device for a game machine that can operate the game machine stably by avoiding power supply voltage fluctuations.

[0008]

To achieve the above object, a power supply device for a game machine according to the present invention is connected to a commercial power supply, and once rectifies AC power of the commercial power supply by a rectifier circuit.
A main regulator that converts the rectified DC power into AC power again by an inverter circuit, adjusts the voltage of the AC power to a predetermined rated voltage, and outputs the main power; A plurality of sub-regulators respectively installed for a game machine or a plurality of grouped game machines, wherein the rectified circuit once rectifies the AC power output from the main regulator, and converts the rectified DC power to an inverter. And a sub-regulator that outputs the AC power to the game machine so that the circuit again converts the AC power into AC power, and the peaks of the voltage waveform and the current waveform of the AC power are different in each sub-regulator. I do.

[0009]

[Operation and Effect] In the power supply device having such a configuration, commercial power is supplied to the main regulator, and the output of the main regulator is transmitted to each game machine or each sub-regulator corresponding to a plurality of grouped game machines. Power supply power is supplied from each sub-regulator to each game machine.

[0010] During the operation of the game machine, a voltage drop is likely to occur in the commercial power due to the current flowing through the game machine. However, the voltage is adjusted by the main regulator so as to maintain the rated voltage of the power supply. Can be supplied to each game machine.

When a game machine hits a large hit, lamps are turned on and a large power supply current flows. However, in each of the game machines or a plurality of sub-regulators connected to a plurality of grouped game machines, an output voltage waveform and a current waveform are generated. The peak of
Each sub-regulator is shifted so as to be different. For this reason, when a plurality of game machines hit at the same time and the game machines are spread over a plurality of groups, it is possible to prevent the current from being temporarily concentrated.

That is, for example, if ten game machines are connected to five sub-regulators, two
The sub-regulators are shifted so that the peaks of the output voltage waveform and the current waveform are different. Therefore, even if multiple game machines hit at the same time, the peak of the current waveform often occurs at the same time. Two machines. Therefore, a peak current does not simultaneously flow through the game machine to which another sub-regulator is connected, so that the peak value of the current flowing at the time of the big hit can be greatly reduced. In this way, it is possible to avoid a voltage drop of the power supply that is likely to occur at the time of hitting, eliminate a voltage fluctuation of the power supply supplied to the game machine, and operate the game machine stably.

[0013]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic configuration diagram of a power supply device of a game machine such as a pachinko machine. This power supply basically comprises a main regulator 1 connected to a commercial power supply.
And a plurality of sub-regulators 2 connected to the output side of the main regulator 1 and installed for a plurality of grouped game machines.

As shown in FIG. 2, the main regulator 1 is connected to a rectifier circuit 11 for rectifying AC power of a commercial power supply, and is connected to an output side of the rectifier circuit 11, and converts the rectified DC power to AC power again. It comprises an inverter circuit 12 and an output monitoring circuit 13 for monitoring the output from the inverter circuit 12.

The output monitoring circuit 13 monitors the output voltage, frequency, and waveform of the main regulator 1, and the output voltage becomes a predetermined voltage value (here, 100 V), and the frequency becomes a predetermined frequency (50 V). / 60 Hz) and a control signal is output to the inverter circuit 12 so that the output voltage waveform maintains an accurate sine waveform.

The inverter circuit 12 is formed of, for example, a thyristor bridge type circuit, controls a firing angle of the thyristor to generate a rectangular wave, and passes the rectangular wave through a waveform shaping filter to convert the sine wave AC power. Configured to obtain. The output voltage and frequency are controlled by controlling the firing angle of the thyristor in accordance with a control signal from the output monitoring circuit 13 to perform phase control, so that a preset voltage (100 V) and frequency (50 or 60 Hz) are set. Is controlled.

The main regulator 1 having such a configuration
Are formed so as to have a power capacity capable of supplying power to, for example, ten game machines P. On the output side of the main regulator 1, for example, five sub-regulators 2,
That is, the first to fifth sub-regulators 2a to 2e are connected in parallel, and two pachinko machines P are connected to each of the first to fifth sub-regulators 2a to 2e in parallel.

As shown in FIG. 3, the sub-regulator 2 is connected to the rectifier circuit 21 for rectifying the AC power supplied from the main regulator 1, and connected to the output side of the rectifier circuit 21. The inverter circuit 22 includes an inverter circuit 22 that converts the power into electric power, and an output monitoring circuit 23 that monitors an output from the inverter circuit 22.

The output monitoring circuit 23 includes a sub-regulator 2
Output voltage is a predetermined voltage value (here, 24V)
And the frequency is set to a preset frequency (50/6
0 Hz), and outputs a control signal to the inverter circuit 12 so that the peak of the output voltage waveform occurs at a preset timing.

The inverter circuit 22 is formed of, for example, a thyristor bridge type circuit, controls a firing angle of the thyristor to generate a rectangular wave, passes the rectangular wave through a waveform shaping filter, and outputs an AC power having a predetermined waveform. Is configured to obtain Further, the peaks of the output voltage waveforms of the five sub-regulators 2a to 2e are set so as to be sequentially shifted and different.

That is, as shown in FIG. 5, the output AC voltage waveform of the first sub-regulator 2a rises from the voltage of 0 V and peaks after a lapse of (T / 12), and on the negative side, (11T / 12) is set so that a peak occurs after the lapse of time. Note that T is the period of the AC voltage (for example, 16.66 ms for 60 Hz).

The output AC voltage waveform of the second sub-regulator 2b rises from the voltage 0V and peaks after a lapse of (2T / 12), and on the negative side (10T / 12)
Is set so that a peak occurs after the time elapses.

Further, the output AC voltage waveform of the third sub-regulator 2c rises from the voltage 0V (3T / 12).
Peak occurs after the elapse of time, and (9T /
It is set so that a peak occurs after the elapse of the time of 12).

Further, as shown in FIG. 6, the output AC voltage waveform of the fourth sub-regulator 2d rises from the voltage 0V and peaks after a lapse of (4T / 12), and on the negative side, (8T / 12) is set so that a peak occurs after the lapse of time.

Further, the output AC voltage waveform of the fifth sub-regulator 2e rises from the voltage 0V (5T / 12).
Peak occurs after the elapse of time, and (7T /
It is set so that a peak occurs after the elapse of the time of 12).

The output voltages of the first to fifth sub-regulators 2 a to 2 e are controlled by a control signal from the output monitoring circuit 23.
By performing the phase control by controlling the firing angle of the thyristor, the control is performed so that the peak of the waveform is obtained at the preset timing as described above. Output monitoring circuit 23
, That is, the outputs of the first to fifth sub-regulators 2a to 2e are connected to the power supply lines of the game machines P in each group. Since the sub-regulator 2 can be formed by a small circuit, it can be installed in a small space inside or near each game machine, and the power line from the sub-regulator 2 to the game machine P should be minimized. And the effect of noise can be minimized.

In the sub-regulator 2 shown in FIG.
Is a current / voltage detection circuit connected to the output monitoring circuit 23, detects the output current and output voltage of the sub-regulator 2, and sends the signal to the communication circuit 26. The communication circuit 26 modulates the data of the voltage value and the current value sent from the current / voltage detection circuit 25 and sends the modulated data to the monitoring device 3 described later.

The monitoring device 3 has a CPU as shown in FIG.
33, a ROM 34, a RAM 35, and an input / output circuit 37.
The PU 33 captures and monitors the output current value and the output voltage value sent from each sub-regulator 2 through the communication circuit 39 based on the program data stored in the ROM 34 in advance, and stores the data at regular intervals. And so on. A display 38 such as a CRT and a printer 36 are provided. The CPU 33 displays the sent current and voltage data on the display 38 in real time, and the printer 36 graphs and prints out the daily data. I do.

Next, the operation of the power supply device of the game machine having the above configuration will be described. The main regulator 1 is installed inside the island of the pachinko game hall, and the first to fifth sub-regulators 2
a to 2e are installed inside or outside the game machines P of each group.

A main regulator 1 connected to a commercial power supply and supplied with commercial AC power rectifies AC power in its rectifier circuit 11 and sends rectified DC power to an inverter circuit 12. Is controlled to generate a rectangular wave, the rectangular wave is shaped into a sine wave through a waveform shaping filter, and AC power is output.

The AC power is supplied to the first to fifth sub-regulators 2 a to 2 e through the output monitoring circuit 13, during which the output monitoring circuit 13 monitors the output voltage, frequency, and waveform of the main regulator 1, The control signal is inverted so that the output voltage becomes a predetermined voltage value (100 V), the frequency becomes a predetermined frequency (50/60 Hz), and the output voltage waveform maintains an accurate sine waveform. Output to the circuit 12.

First to fifth sub-regulators 2a to 2e
Converts the 100 V AC power supplied from the main regulator 1 into a 24 V AC power, and supplies power to the game machine P so that the peaks of the voltage waveform and the current waveform of the AC power are different among the sub-regulators.

That is, the first to fifth sub-regulators 2a
In 2e, the 100V AC power from the main regulator 1 is rectified by the rectifier circuit 21, the rectified DC power is sent to the inverter circuit 22, and the inverter circuit 22 controls the firing angle of the thyristor to generate a square wave. Then, the rectangular wave is passed through a waveform shaping filter to shape the waveform, and 24 V AC power is output.

At this time, the output AC voltage waveform of the first sub-regulator 2a rises from the voltage of 0 V and peaks after a lapse of (T / 12), and on the negative side, (11T /
A peak occurs after the lapse of time 12). Therefore, as shown in FIG. 5, the current waveform when the load current is supplied is (11T / 1) after the lapse of the time (T / 12) and on the negative side similarly to the voltage.
It has a peak after the lapse of time 2), and has a current waveform with a time width of about (T / 12).

The output AC voltage waveform of the second sub-regulator 2b rises from the voltage 0V and peaks after a lapse of (2T / 12), and on the negative side, (10T / 12)
A peak occurs after the lapse of time. Therefore, the current waveform when the load current is supplied has a peak after the lapse of the time (2T / 12) and on the negative side after the lapse of the time (10T / 12), as in the case of the voltage. The current waveform has a width.

The output AC voltage waveform of the third sub-regulator 2c rises from the voltage 0V and has a peak after a lapse of (3T / 12), and a peak on the negative side after a lapse of (9T / 12). For this reason, the current waveform at the time of load has a peak after a lapse of (3T / 12) and a lapse of (9T / 12) on the negative side similarly to the voltage waveform, and has a time width of about (2T / 12). The current waveform has

The output AC voltage waveform of the fourth sub-regulator 2d rises from the voltage 0V and has a peak after a lapse of (4T / 12), and a peak on the negative side after a lapse of (8T / 12). Therefore, as shown in FIG. 6, the current waveform at the time of load is similar to the voltage waveform (4T / 12).
AC power having an AC current waveform having a peak and a time width of about (2T / 12) at the same time after the lapse of the time (8T / 12) on the negative side and after the lapse of the time (8T / 12) is supplied to the game machine P.

The output AC voltage waveform of the fifth sub-regulator 2e rises from the voltage 0V and has a peak after a lapse of (5T / 12), and a peak on the negative side after a lapse of (7T / 12). For this reason, the current waveform at the time of load has a peak at the same time after the lapse of time (5T / 12) and after the lapse of time (7T / 12) on the negative side similarly to the voltage waveform, and has a peak of about (2T / 12). AC power having an AC current waveform having a time width is supplied to the game machine P.

As described above, the first sub-regulators 2a-
From the fifth sub-regulator 2e, when a load is applied, (T / 1
2) A short-width current having a peak is output at a timing shifted by time, and even if a large jackpot occurs simultaneously in all the game machines connected to the first sub-regulator 2a to the fifth sub-regulator 2e. In addition, current concentration is avoided, and a voltage drop of the power supply is prevented, so that the game machine can operate stably.

In the above embodiment, five sub-regulators are connected to one main regulator.
The number of them can be arbitrarily determined, and the number of game machines connected to the sub-regulator can also be arbitrarily determined.

[Brief description of the drawings]

FIG. 1 is a block diagram of a power supply device of a game machine according to an embodiment of the present invention.

FIG. 2 is a block diagram of a main regulator 1.

FIG. 3 is a block diagram of a sub regulator 2.

FIG. 4 is a block diagram of the monitoring device 3.

FIG. 5 is an output waveform diagram of first to third sub-regulators.

FIG. 6 is an output waveform diagram of fourth to fifth sub-regulators.

FIG. 7 is a waveform diagram of each part of a general power supply circuit.

[Explanation of symbols]

 1-main regulator, 2-sub-regulator, 2a to 2e-first to fifth sub-regulator 3-monitoring device, 11, 21-rectifier circuit, 12, 22-inverter circuit, 13, 23-output monitoring circuit, P- game machine.

Claims (1)

[Claims] An AC power supply connected to a commercial power supply, the AC power of the commercial power supply is once rectified by a rectifier circuit, and the rectified DC power is converted into AC power again by an inverter circuit, and a voltage of the AC power is predetermined. A main regulator that adjusts and outputs the rated voltage, and a plurality of sub-regulators connected to the output side of the main regulator and installed for each game machine or for a plurality of grouped game machines, The AC power output from the main regulator is once rectified by a rectifier circuit, the rectified DC power is again converted into AC power by an inverter circuit, and the peaks of the voltage waveform and the current waveform of the AC power are output by each sub-regulator. And a sub-regulator that outputs AC power to the game machine. Source apparatus.